ObjFW  Check-in [1829139db1]

	/*
	 * GZIP only compresses one file and thus has no path inside an
	 * archive.
	 */
	if ([scheme isEqual: @"gzip"]) {
		stream = [OFIRIHandler openItemAtIRI: [OFIRI IRIWithString:
							  IRI.path]
						mode: @"r"];
		stream = [OFGZIPStream streamWithStream: stream mode: @"r"];
						mode: mode];
		stream = [OFGZIPStream streamWithStream: stream mode: mode];
		goto end;
	}

	percentEncodedPath = IRI.percentEncodedPath;
	pos = [percentEncodedPath rangeOfString: @"!"].location;

	if (pos == OFNotFound)
		@throw [OFInvalidArgumentException exception];

	archiveIRI = [OFIRI IRIWithString:
	    [percentEncodedPath substringWithRange: OFMakeRange(0, pos)]
	    .stringByRemovingPercentEncoding];
	path = [percentEncodedPath substringWithRange:
	    OFMakeRange(pos + 1, percentEncodedPath.length - pos - 1)]
	    .stringByRemovingPercentEncoding;

	if ([scheme isEqual: @"lha"]) {
		OFLHAArchive *archive = [OFLHAArchive archiveWithIRI: archiveIRI
								mode: @"r"];
								mode: mode];
		OFLHAArchiveEntry *entry;

		while ((entry = [archive nextEntry]) != nil) {
			if ([entry.fileName isEqual: path]) {
				stream = [archive streamForReadingCurrentEntry];
				goto end;
			}
		}

		@throw [OFOpenItemFailedException exceptionWithIRI: IRI
							      mode: mode
							     errNo: ENOENT];
	} else if ([scheme isEqual: @"tar"]) {
		OFTarArchive *archive = [OFTarArchive archiveWithIRI: archiveIRI
								mode: @"r"];
								mode: mode];
		OFTarArchiveEntry *entry;

		while ((entry = [archive nextEntry]) != nil) {
			if ([entry.fileName isEqual: path]) {
				stream = [archive streamForReadingCurrentEntry];
				goto end;
			}
		}

		@throw [OFOpenItemFailedException exceptionWithIRI: IRI
							      mode: mode
							     errNo: ENOENT];
	} else if ([scheme isEqual: @"zip"]) {
		OFZIPArchive *archive = [OFZIPArchive archiveWithIRI: archiveIRI
								mode: @"r"];
								mode: mode];

		stream = [archive streamForReadingFile: path];
	} else
		@throw [OFInvalidArgumentException exception];

end:
	stream = [stream retain];

	return S_ISDIR(s.st_mode);
}

- (OFStream *)openItemAtIRI: (OFIRI *)IRI mode: (OFString *)mode
{
	void *pool = objc_autoreleasePoolPush();
	OFFile *file = [[OFFile alloc]
	    initWithPath: IRI.fileSystemRepresentation
		    mode: mode];
	OFFile *file;

	@try {
		file = [OFFile fileWithPath: IRI.fileSystemRepresentation
				       mode: mode];
	} @catch (OFOpenItemFailedException *e) {
		/* The thrown one has a path instead of an IRI set. */
		@throw [OFOpenItemFailedException exceptionWithIRI: IRI
							      mode: mode
							     errNo: e.errNo];
	}

	[file retain];

	objc_autoreleasePoolPop(pool);

	return [file autorelease];
}

- (OFFileAttributes)attributesOfItemAtIRI: (OFIRI *)IRI